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Reconciliations Between Statutory Federal Income Tax Rate and Effective Rate (Detail) | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Income Tax Disclosure [Abstract] |  |  |
Statutory Federal income tax rate | 34.00% | 34.00% | 34.00%
Increase (Decrease) resulting from: |  |  |
U.S. Taxes on foreign income, net of taxes paid credit | 1.30% | 1.00% | 0.30%
Change in valuation allowance | 5.30% | (1.90%) | (0.80%)
Foreign, state and local tax, net of Federal benefit | 1.10% | 1.60% | 1.90%
Nondeductible expenses | 2.40% | 1.80% | 1.80%
Stock option compensation |  | (0.10%) | (0.10%)
Research and development credits | (0.70%) | (0.90%) | (0.50%)
Effect of different tax rates of foreign jurisdictions | (15.00%) | (12.10%) | (10.00%)
Undistributed profits of subsidiaries | 7.90% | 2.40% |
Other tax exempt income |  | (0.10%) | (0.90%)
Tax effects of intercompany transfers | (5.30%) |  |
Other | (0.30%) | 0.30% | (0.10%)
Effective rate | 30.70% | 26.00% | 25.60%

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 + Details
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